Improvement in machines for making heads to barrels



u UNETE STATES PATENT Ormea.

JOHN GREENWOOD, OF ROCHESTER, NEW YORK.'

Specification forming part of Letters Patent No. 116,661, dated March 7,`1863.

To all whom, it may concern.-

Be itknown that l, JOHN GREENWOOD, of Rochester, in the county of Monroeand State of New York, have invented new and useful Improvements inMachines for Making Barrel- Heads; and I do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the accompanying drawings, makingpart of this specification.

Figure 1 is a plan of my improved machine; Fig. 2, a side elevationthereof; Fig. 3, a diagram representing the arrangement for releasingthe swing-frame after the barrel-head has been cut; Fi g. 4, a centralsection of the shaft and connecting parts, combined with the movableclamp-heads, and showing more particularly the reaction of said shaft tohold the clamp-heads apart for inserting the boards to be cut; Fig. 5, aview of the swing-arm on which the boards rest when inserted between theclamp-heads.

Like letters of referenceindicate correspondn r parts in all the gures.

My invention consists, essentially, in an arrangement of mechanism on aswing-frame in such a manner that when said frame is swung forward so asto bring its operating parts in communication with the drivingmachinery,the clamp-heads will be moved together to hold the boards to be cut, andthe latter will be moved up to the cutter; also, in the arrangement ofparts for releasing the swingframe after the barrel-head has been cut.

It further consists in the combination and arrangement of severaldevices of minor importance, that will be specifically described.

As represented in the drawings, a suitable main frame, A, is provided,in which is jointed at a on oneside a swing frame or bar, B, thatsupports on its top boxes or bearings b b b. In the box b rests theshaft of a clamp head, C, that is fixed in position, and in the boxes bb" rests the shaft D of a clamphead, O", that.

is movable endwise, to bring it nearer to or farther from the clamp-headO, so as to hold or discharge the pieces of board placed between theclamps to form the barrel-head.

The device for producing the reaction of the shaft D to throw the clampsapart is clearly represented in Fig. 4. The shaft is provided with ahollow or cavity, c, in which rests a spring, d. It is also providedwith a slot, f, through which passes a pin, g, of a collar, h, next thebox b. The collar and pin revolve with the shaft. The constant pressureof the spring against the pin'will force the shaft outward, as indicatedby black arrow, the box b" in this case acting as a fulcrum to thecollar. For producing the opposite action of the shaft to force theclamps together to hold lthe board, as indicated by red arrow, Fig. 4,the following device is employed: The outer end of the shaft has a ball,i, which flts into a steel socket, k, whose head is connected with alever, E, Figs. 1 and 2, jointed at l to the box b, and extendingbackward, having its rear end, m, bent, as shown, (or provided with afriction-roller,) resting against a sliding cam, G. The cam G consistsof a wedge, a, in frontand a shoulder or catch, o, in the rear.

It is secured to a way, H, in any desirable manner, so as to moveforward and backward. To produce the forward movement, I secure a cordor chain, p, in front, passing over a pulley, q, and downward, attachingto a treadlever, I. To produce the backward movement, I secure a cord orchain, p', passing over a pulley, g', and downward, attaching to aspring, r, secured tothe main frame. When the tread-lever is depressed,the cam is carried forward, and when the pressure is removed thereaction of spring I carries it back to its former position, and at thesame time raisesV the tread Jever.

Itis obvious that the rst action of the for-y ward movement of thewedge-cam G will be to force the lever E inward laterally, which, 'ofcourse, will correspondingly move the shaft D, and consequently itsclamp C', in such a manner as to hold firmly the boards placed betweenthe clamps to be cut. `this is accomplished the shoulder or catch o lofthe cam strikes the end of the lever and carries the same bodilyforward, and Aconsequently moves the swing-frame up or forward from theposition indicated in black lines to that indicated in red, Fig. 1. Inthis position lthe end of the lever E strikes against a projection, s,on the inside, which holds it against outward lateral movement, andtherefore keeps the clamps together while the barrelv head isbeing cutby the cutter K. `This arrangement for producing the end action andreaction of the clamp is very simple, effective,

and convenient. The clamps rst close tofasten the material and thenmore. it up to the cutter to be cut, and as soon as this is accomplishedand the swing-frame moves back again, (as will presently be separate andthe finished head drops out, and

As soon as described,)the clamps situated within it. The ball and sockett k also allow the shaft to turn freely. -I am not` aware that such adevice was ever employed prior to my invention.

While the cutting is being performed it is also necessary to hold theswing-frame B rigidly in place, and as soon as the action is completedto releaseit. I accomplish this automatically by the following means: i

At the proper position to the side of th main frame I secure a spring,L, Figs. 2 and 3, having a catch, `t, which yields tothe end of theswing-frame in its forward movement, but prevents it from moving backunless depressed. The forward end of the spring rests over a disk-wheel,M, which has a pin, u, projecting up from its surface in such a mannerthat when the wheel is turned in the proper direction it will strike thespring and depress it. A cord or chain, c, is wound around the shaft ofthe disk-wheel once or twice, having a small Weight, fw, at its oppositeend. The disk-wheel is mounted on a spring bearing or arm, N, which isjointed at .fr to the main frame, the opposite end projecting inward insuch a position and to such an extent that when the swing-frame is movedforward it will strike it and press the diskwheel back against a groovedfriction-wheel, O, on the main drivingshaft'P. This, of course, givesmotion to the disk-wheel, which is carried around till the pin u strikesthe spring L and presses it back so as to release the swingf frame, asbefore described. The disk-wheel, in thus turning to release theswing-frame, winds up the cord v, and when this wheel is released fromcontact with the wheel O, the weight w causes the cordto unwind and thedisk-wheel to turn back toits original position, ready to act again. Theactionis thus automatic. The swing-frame is drawn back by a spring, V,or equivalent. The shaft D receives its revolving motion by means of agear-wheel, l, secured to it, which meshes with a pinion, 2, when theswing-framelis moved forward, the latter pinion receiving motion bybevel-gears 3 4 from main shaft P, driven by means of a cog-wheel, 5,into which meshes a worm-wheel on the shaft Q, or in some equivalentmanner. Beneath the clampheads C O is situated a trough or spout, R, fordischarging the barrel-heads as they are cut. in the rear is a rightangled arm S, projecting underthe clamps. In front isa similar arm, S',but attached to a shaft, y, resting in bearings z z, and having aprojection, a', at its top, with which is connected a rod, c', extendingbackward through the main frame,'and

provided with a head, d', without.

vWithin 5 Below the clamps and above the trough When the swing-frame isdrawn back anu the clamps stand in the angular position indicated byblack lines, Fig. 1, the arms S S will both project sufficiently underthe clamps to catch and sustain the boards that are placed but when theboards have been clamped in the manner before described, and the clampshave swung round to the position indicated by red lines, the boardswillswing clear` of the rear arm, S, and at the same time, when the forwardmovement ofthe swing-frame commences, it will draw upon the rod c',bringing the head d against the main frame, and" will consequentl f turnthe arm S back into the position indicated by red lines, Fig. l. Theboards being thus clear of the arms are allowed to revolve against thecutter. This arrangement is very simple and effective.

I bevel the inner edges of the clamp-heads C C', as shown at f', inorder to guide the boards more easily in entering. In ordinary devicesthe edges are made square, and it is difficult to enter the boardsbetween them.

What I claim as my invention, and desire to secure by Letters Patent,is-

l. So arranging the clampheads O O upon the swing-frame B, andcombiningv therewith the sliding shaft D, that the said heads firstclamp the boards in place and then move up to cut the barrel head,substantially, as herein set forth.

2. In combination with the sliding shaft D and clamps O O', the lever Eand wedge-cam G, operating substantially as and for the pur posesspecified.

3. The combination of the cavity c and slot j', the Whole so arranged asto produce -the reaction of said shaft to separate the clamps, and so asnot to inter- `fere with the turning of the shaft, substantially asdescribed. l

4.. llhe disk-wheel M, mounted on the arm N, and both used incombination with the swing-frame B and friction-wheel O, in such amanner that the forwardV motion of said swing-frame will bring the twowheels in contact and the back motion of the frame will disengage them,substantially as herein specified.

'5. In combination with the subject-matterthe sprirggcatch t,

of the preceding clause, substantially as specified. f

6. The arms S S', in combination with the clamp-heads C C andswing-frame B, to operate in such a manner that when the swing frame isdrawn back the said arms will rest under the clamps to sustain theboards, but

when moved forward the clamps will clear from them, substantially asdescribed.

In witness whereof I have hereunto signed presence of two subscribingAmy name in the witnesses.

JOHN GREENWOOD. Witnesses:

R. F. OsGooD, :JAY HYATT.

the spring d, pin g,-4 :and collar lL, with the shaft D, provided with

